Spraying device for retouching faded paint



Jan. 28, 1964 DUNNING, JR 7 3,119,528

SPRAYING DEVICE FOR RETOUCHING FADED PAINT Fiied May 23. 1961 l l I E BYv @JJZJ ATTORNEYS- United States Patent 3,119,528 SPRAYING DEVICEFURIRETOUCHKNG FADED PAlI T Leighton Dunning, Jan, 7806 Cresheim Road,Philadelphia 18, Pa. Filed May 23, 1961, Ser. No. 112,093 3 Claims. (Cl.222-82) This invention relates to a spraying device, i.e. to a devicefor spraying paint or the like, in the form of a container from whichthe paint is discharged by air or other gas under pressure through amanually controllable nozzle.

Paints of various standard colors or shades are com monly marketed inspraying devices of the kind referred to for use, for example, intouching up the bodies of automo biles and the like. With time, thepaints or lacquers, as the case may be, originally applied to automobilebodies change to a very considerable extent in tone due to exposure tothe weather and the progressive drying out of the paint over periods oftime, and are not matched perfectly by the touch-up paints or lacquersavailable in such spraying devices. Household paint retouching alsopresents this problem.

The chief aim of my invention is to provide a spraying device in whichadditional pigment is available for regulatable injection into the paintsolution to vary color depth for correspondence with the shade of thepaint on automobiles, interior or exterior walls of houses or otherobjects which require retouching by reason of being scratched orotherwise marred.

Other objects and attendant advantages will appear from the followingdetailed description of the attached drawings, wherein:

FIG. 1 is a view partly in elevation and partly in vertical section of aspraying device embodying my invention in one form;

FIG. 2 is a view similar to FIG. 1 of a spraying device embodying myinvention in another form; and

FIGS. 3 and 4 are fragmentary views of the lower portion of FIG. 2 drawnto a larger scale.

As exemplified in FIG. 1, the spraying device of my invention comprisesa container 5 having a perimetric wall 6, and a top closure 7 with avalved discharge nozzle 8. The container is closed at the bottom by abottom wall 10 which is upwardly arched to a level above the lower edgeof the side wall 6. Underlying the wall 10 is a diaphragm 10b, which,with the wall 10, defines a hollow bottom providing an auxiliarycompartment 11 for a quantity of pigment P below a large maincompartment 12 for paint S in solution with a head A of compressed airor other gas thereabove. Extending down from the nozzle 8 to a pointshort of the bottom wall 10 is an eduction tube 13, and disposed in thecompartment 12 is a ball 14 for agitating the paint solution S byshaking the container. Secured to the lower end of the perimetric wall 6of the container is a cap 15' having, at the center, a tapped hole inwhich a screw 16 is threadedly engaged to bear upwardly against thebottom of the auxiliary compartment 11, i.e., against the diaphragm 1%.By turning the screw 16, it will be seen that some of the pigment P willbe expressed from the compartment 11 through an orifice 17 in the bottomwall 10. Thus by adjusting the screw 16, it is possible to vary theshade of the paint solution sprayed from the nozzle 8 as may benecessary to match that of the original color in touching up automobilebodies or other objects. The container 5 may be constructed from sheetmetal or other suitably stiif sheet material with the component partsthereof welded or otherwise united fiuid-tightly along the regions ofmutual abutment. The nozzle 8 may be any approved type, and per se isnot to be considered of my invention.

In the modification of FIG. 3 the bottom wall 10a is not providedinitially with an orifice as in the first described embodiment. Here,the diaphragm 10c has aflixed to it at the center, an upstanding stud 20with a longitudinally extending groove 21 and a pointed head 22. As thescrew 16a is turned up, the bottom wall 10a will be pierced by the stud20, as in FIG. 4, with attendant displacement of pigment P into thepaint solution S by way of the passageway 21 in said stud.

In the modification of FIG. 2, the container 5b has a removable screwtop 71) fitted with a valved nozzle 8b which is adapted to be connected,by a hose 21, to a source of compressed air or gas, not shown. The meansfor injecting pigment into the paint solution in FIG. 2, as will beobserved, is identical with that illustrated in FIGS. 3 and 4 and neednot therefore be separately described. If desired or deemed prefenahle,the bottom construction of FIG. 1 may be used in the device of FIG. 2 orvice versa.

While in accordance with the provisions of the statutes, I haveillustrated and described the best forms of embodiment of my inventionnow known to me, it will be apparent to those skilled in the art thatchanges may be made in the forms of the apparatus described withoutdeparting from the spirit and scope of the invention as set forth in theappended claims, and that in some cases certain features of my inventionmay be used to advantage without a corresponding use of other features.

Having thus described my invention, I claim:

1. A spray device comprising a container having a perimetric side wall,a top closure provided with a valved spray nozzle, a bottom wall withinsaid side wall at an elevation above the bottom end of the said sidewall and with said side wall and top closure defining a main C0111-partment for pressurized paint in solution, a diaphragm underlying saidbottom wall and with the latter defining an auxiliary compartment for aquantity of pigment in paste form, a stud upstanding from said diaphragminto the auxiliary compartment and having a passageway longitudinallythereof, a cap under said diaphragm secured to the lower end of saidside wall, and a screw threadedly engaged in said cap and bearingagainst the bottom of said diaphragm under said stud, said screw uponbeing turned causing said stud to pierce the said bottom wall andcausing pigment to be forced in regulatable amounts through the saidpassageway into the paint solution in said main compartment to vary theshade of the spray expelled through said nozzle.

2. A spraying device comprising a container having a perimetric sidewall, a top closure provided with a valved spray nozzle, a hollow bottomwithin said side wall at an elevation above the bottom end of said sidewall providing an auxiliary compartment, said auxiliary compartmenthaving an upper and a lower wall, for a quantity of pigment in pasteform and setting apart thereabove a larger or main compartment forpressurized paint in solution, a longitudinally grooved pointed studupstanding from said lower wall of the auxiliary compartment, a capsecured to the lower end of said side Wall, and a screw threadedlyengaged in said cap and bearing against said lower wall of the auxiliarycompartment, said screw upon being turned causing the stud to piercesaid upper wall of the auxiliary compartment and pigment to be forced inregulatable amounts through the aperture incidentally formed in saidupper wall of the auxiliary compartment into the paint solution in themain compartment to vary the shade of the spray expelled through saidnozzle.

3. A spray device comprising a container having a perimetric side wall,a top closure provided with a valved spray nozzle, a bottom wall withinsaid side wall at an elevation above the bottom end of the said sidewall and with said side wall and top closure defining a main compartment for pressurized paint in solution, a diaphragm underlying saidbottom Wall and with the latter defining an auxiliary compartment for aquantity of pigment in paste form, a stud upstanding from said diaphragminto the auxiliary compartment and adapted for piercing said bottomWall, said stud being provided with means operative to provide apassageway placing said auxiliary compartment in communication with saidmain compartment when said bottom wall is pierced as aforesaid, a capunder said diaphragm secured to the lower end of said side wall, and ascrew threadedly engaged in said cap and bearing against the bottom ofsaid diaphragm under said stud, said screw upon being turned causingsaid stud to pierce the said bottom wall and causing pigment to beforced in regulatable amounts through the said passageway into the paintsolution in said main compartment to vary the shade of the sprayexpelled through said nozzle.

References Cited in the file of this patent UNITED STATES PATENTS AnsleyJuly 3, 1906 Shatz Aug. 21, 1923 King Dec. 31, 1929 Meurer Feb. 20, 1934Greenberg Oct. 31, 1950 Kochner M Feb. 12, 1952 Pedersen Feb. 18, 1958Sykes May26, 1959 Beard Nov. 8, 1960 FOREIGN PATENTS France Dec. 21,1931

1. A SPRAY DEVICE COMPRISING A CONTAINER HAVING A PERIMETRIC SIDE WALL, A TOP CLOSURE PROVIDED WITH A VALVED SPRAY NOZZLE, A BOTTOM WALL WITHIN SAID SIDE WALL AT AN ELEVATION ABOVE THE BOTTOM END OF THE SAID SIDE WALL AND WITH SAID SIDE WALL AND TOP CLOSURE DEFINING A MAIN COMPARTMENT FOR PRESSURIZED PAINT IN SOLUTION, A DIAPHRAGM UNDERLYING SAID BOTTOM WALL AND WITH THE LATTER DEFINING AN AUXILIARY COMPARTMENT FOR A QUANTITY OF PIGMENT IN PASTE FORM, A STUD UPSTANDING FROM SAID DIAPHRAGM INTO THE AUXILIARY COMPARTMENT AND HAVING A PASSAGEWAY LONGITUDINALLY THEREOF, A CAP UNDER SAID DIAPHRAGM SECURED TO THE LOWER END OF SAID SIDE WALL, AND A SCREW THREADEDLY ENGAGED IN SAID CAP AND BEARING AGAINST THE BOTTOM OF SAID DIAPHRAGM UNDER SAID STUD, SAID SCREW UPON BEING TURNED CAUSING SAID STUD TO PIERCE THE SAID BOTTOM WALL AND CAUSING PIGMENT TO BE FORCED IN REGULATABLE AMOUNTS THROUGH THE SAID PASSAGEWAY INTO THE PAINT SOLUTION IN SAID MAIN COMPARTMENT TO VARY THE SHADE OF THE SPRAY EXPELLED THROUGH SAID NOZZLE. 